NAICS Code 488999: All Other Support Activities for Transportation
NAICS code 488999 is the industry for all other support activities for transportation in the Transportation and Warehousing sector. Agencies tag every federal contract with a NAICS code, so this is the code to list in your SAM.gov registration and to search for bids.
Government contracts under NAICS 488999
Federal agencies obligated $1.3B on contracts under NAICS 488999 from FY2024 to FY2026, including $393M in FY2026. The biggest buyers were the General Services Administration, the Department of Defense, the Agency for International Development. The largest contractors were Mantech Advanced Systems International, Inc., International Auto Logistics, LLC, Africa Global Logistics Mocambique, S.a.
See the full breakdown: government all other support activities for transportation contracts, who wins and who buys.
Open government bids for NAICS 488999
The newest open notices from SAM.gov. Bidding needs a free SAM.gov registration.
Dept of Defense · Sources Sought · NAICS 488999 · No Set aside used
Posted Oct 30, 2026 · Responses due Nov 20, 2026
Small business size standard for NAICS 488999
To bid on small business set-aside contracts under NAICS 488999, your business must be small under the SBA size standard for this code, measured either by average annual receipts or by number of employees. The values are updated periodically, so check the current SBA table of size standards before you bid.
Other NAICS codes in 4889
How to choose the right NAICS code
Pick the 6-digit code that best describes what you sell. List it as your primary code in SAM.gov, and add other codes for related work. Agencies choose one NAICS code for each contract, so check the codes on past awards for the kind of work you do. Search all codes in the NAICS code lookup.
Related guides
Frequently asked questions
- What is NAICS code 488999?
- NAICS 488999 is the industry "All Other Support Activities for Transportation" in the North American Industry Classification System, part of the Transportation and Warehousing sector (48).
- What is the size standard for NAICS 488999?
- The SBA sets a small business size standard for each NAICS code, either average annual receipts or number of employees. Check the current value for 488999 in the SBA table of size standards on sba.gov; it changes from time to time.
- Are there government contracts for NAICS 488999?
- Yes. Federal agencies obligated $1.3B on contracts under NAICS 488999 from FY2024 to FY2026, and 1 notices are open right now.